The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 2005
Filed:
Nov. 15, 2002
Michael J. Saunders, Norristown, PA (US);
Vincent S. Yip, Philadelphia, PA (US);
Joseph P. Neill, East Fallowfield, PA (US);
Richard Grzegorek, Eagleville, PA (US);
James R. Hunter, Chadds Ford, PA (US);
Michael J. Saunders, Norristown, PA (US);
Vincent S. Yip, Philadelphia, PA (US);
Joseph P. Neill, East Fallowfield, PA (US);
Richard Grzegorek, Eagleville, PA (US);
James R. Hunter, Chadds Ford, PA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
The present invention provides systems and methods for allocating a pool of global memory among a set of client/servers so that storage volumes associated with a plurality of client/servers are each allocated a portion of the pool of global memory for caching of data from that volume. The amount of memory to be used for caching the volume's input/output operations (I/Os), the page size, the cache type, the cache replacement policy and the maximum cache read can be specified by volume. The amount of memory to be used for caching the volume's input/output operations, the cache type, the cache replacement policy and the maximum cache read I/O size can be changed dynamically by the changing volume-based attributes.